Brief Answer:
Hi,

Detailed Answer:
Hi,

Thanks for your query,

Dryness of foreskin can be caused by poor local hygiene, Use of lotions or soaps which are irritable to skin. Also some times, infection of the foreskin may cause thrush of the skin of penis making it dry. This is caused by a yeast known as Candida.
Hence, in my opinion, you should take special precautions for your local hygiene, particularly regularly changing your under garments.Use of condoms to avoid infection from your partner, particularly yeast infections. Avoid use of scented perfumes, lotions or irritable soaps etc. to the genital area.
Use of thick moisturisers to the local area after a bath may be beneficial. If the fungal infection is suspected, local anti fungal ointment may be used. Sometimes, even oral anti fungal treatment may be needed under guidance of your doctor. In recurrent cases, your sexual partner may also need anti fungal treatment, if advised by your doctor.

Hope, I answered your question

Regards

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